Effects of a preventive parenting intervention for bereaved families on the intergenerational transmission of parenting attitudes: Mediating processes

Abstract This study evaluated whether the Family Bereavement Program (FBP), a prevention program for parentally bereaved families, improved parenting attitudes toward parental warmth and physical punishment in young adult offspring 15 years after participation and identified mediational cascade pathways. One hundred fifty-six parents and their 244 offspring participated. Data were collected at pretest (ages 8–16), posttest, and six- and 15-year follow-ups. Ethnicity of offspring was: 67% non-Hispanic Caucasian, 16% Hispanic, 7% African American, 3% Native American, 1% Asian or Pacific Islander, and 6% other; 54% were males. There was a direct effect of the FBP on attitudes toward physical punishment; offspring in the FBP had less favorable attitudes toward physical punishment. There were also indirect effects of the FBP on parenting attitudes. The results supported a cascade effects model in which intervention-induced improvements in parental warmth led to fewer externalizing problems in adolescence/emerging adulthood, which in turn led to less favorable attitudes toward physical punishment. In addition, intervention-induced improvements in parental warmth led to improvements in anxious romantic attachment in mid-to-late adolescence/emerging adulthood, which led to more favorable attitudes toward parental warmth in emerging/young adulthood. These findings suggest that the effects of relatively brief prevention programs may persist into subsequent generations.


Introduction
There is compelling evidence that parenting attitudes and behaviors are related to one's own experiences of being parented in childhood (Bailey et al., 2009;Belsky et al., 2005;Erzinger & Steiger, 2014;Kerr et al., 2009;Neppl et al., 2020;Savelieva et al., 2017;Thompson et al., 2014), a process referred to as the intergenerational transmission of parenting.However, nearly all studies in this area have used retrospective or passive longitudinal designs.To our knowledge, only one study has examined whether intervention-induced improvements in parenting in one generation affect their offspring's parenting attitudes.In this study, Mahrer et al. (2014) found that participation in a parenting-focused program for divorced mothers (G1) when their offsprings (G2) were in late childhood/early adolescence led to an increase in G2's attitudes toward parental warmth 15 years after the program.There were also interactive effects of G1's pretest harsh parenting and pretest parental warmth with intervention condition on G2's.Interactive effects showed that the program especially benefited G2s whose mothers reported either low warmth or high harsh parenting at program entry.
Researchers have identified pathways that may account for the intergenerational transmission of parenting.In their meta-analysis of behavioral genetic influences on parenting, Klahr and Burt (2014) demonstrated significant passive and evocative genetic influences on various dimensions of parenting behavior.Consistent with social learning theory (Bandura, 1977), a significant body of research has demonstrated direct transmission of G1 parenting to G2 parenting for harsh parenting (e.g., verbal and physical aggression; Capaldi et al., 2003Capaldi et al., , 2008;;Neppl et al., 2009;Simons et al., 1991).A smaller body of research has shown the various dimensions of G1 positive parenting (e.g., involvement, affection, attachment) predict G2 positive parenting (Belsky et al., 2005;Kerr et al., 2009;Neppl et al., 2009).In passive longitudinal studies, results have shown indirect or cascade effects of G1 positive parenting on G2 parenting through G2 functioning, such as peer competence and externalizing problems (Capaldi et al., 2003;Neppl et al., 2009;Shaffer et al., 2009).In Mahrer et al.s' (2014) experimental study, the program effects on G2's attitudes toward warm parenting 15 years after G1 program participation were partially mediated by program-induced effects on G1's warm parenting.Also, G2's academic competence and externalizing problems in adolescence were significant mediators of the relation between program effects on G1's harsh parenting and G2's attitudes toward warm parenting 15 years later.
Experimental intervention studies, such as Mahrer et al.'s (2014) and the current one, offer a robust means of examining the core causal models underpinning resilience theory (Masten & Palmer, 2019;Masten, 2007Masten, , 2014)).In resilience theory, parenting is viewed as a key protective resource (e.g., Masten & Palmer, 2019) and a critical leverage point for changing children's behaviors and attitudes, with cascading effects that spread across time, domains of function, and systems (Masten & Cicchetti, 2016;Masten, 2014;Masten & Palmer, 2019).
In the current study, we used data from multiple assessments over 15 years from G2 childhood/adolescence to emerging/young adulthood that were collected in the randomized controlled trial of the Family Bereavement Program (FBP).The FBP is a preventive intervention for parentally bereaved families that targets parentchild relationship quality, parent demoralization, parent discipline practices, and child coping.In the following sections, we first review the research on the link between attitudes toward parenting, parenting behaviors, and outcomes.Next, we discuss the theoretical basis and empirical support for three plausible mediational cascade pathways that may account for an association between improvements in parental warmth in one generation (G1) and parenting attitudes in the next generation (G2): G1 modeling of parental warmth, G2 functioning (specifically, competencies and externalizing problems), and G2 grief.Then, we discuss the current study.

Modeling of parental warmth
It may be that program-induced improvements in G1 parental warmth affect G2's parenting attitudes through observational learning or modeling.Consistent with social learning theory (Bandura, 1977), children may internalize attitudes regarding how parents should engage with their children (e.g., Capaldi et al., 2003Capaldi et al., , 2008) ) and therefore endorse attitudes about parenting that reflect how they were treated by their parents.Support for this pathway is provided by the findings of Chen and Kaplan's (2001) three-wave study, which found a significant relation between G1 positive parenting during G2 adolescence and G2 positive parenting practices during their 20s and 30s.This effect remained significant after accounting for three other mediators: G2 psychological state, interpersonal relationships, and social participation.Other longitudinal studies have found that G1's use of supportive parenting and physical punishment significantly predicts G2's supportive parenting and physical punishment, respectively (Simons et al., 1993).In one study, G1's aggressive parenting similarly predicted G2's aggressive parenting (Conger et al., 2003).

G2 functioning (competences and externalizing problems)
From the perspective of a cascade effects model (Masten et al., 2015;Rutter & Sroufe, 2000;Sameroff, 2000), it is plausible that the intergenerational transmission of parenting occurs as a result of G1 parenting impacting aspects of G2's functioning, which in turn affects G2 attitudes toward parenting.Four aspects of G2 functioning have been empirically supported as plausible mediators: social relations (i.e., peer competence and romantic attachment), academic competence, and externalizing problems.
There is also evidence that G2 peer competence and romantic attachment are associated with subsequent G2 parenting behaviors.For example, Shaffer et al. (2009) found that the transmission of highquality parenting, which was assessed during G2 young adulthood, was fully mediated by G2 social competence in emerging adulthood.This effect held across gender and ethnicity and remained significant after controlling for G2 IQ and SES.In their 32-year longitudinal study, Raby et al. (2015) found that G1 sensitive caregiving in the first three years of G2's life predicted G2 peer competence in childhood and adolescence, which in turn predicted G2 romantic relationship competence in young adulthood and supportive parenting in adulthood.A review of more than 60 studies found that insecure romantic attachment was related to providing less sensitive, supportive, and responsive parenting (Jones et al., 2015).
The relations between quality of G1 parenting, G2 peer and romantic competence, and G2 parenting can be understood from an attachment theory perspective (Bowlby, 1982).This theory posits that early attachment between children and their parents contributes to the development of an internal working model that is applied to later situations, such as relationships with romantic partners and peers (e.g., Feeney et al., 1996).For example, receiving warm parenting may promote the development of skills that support children in having generally positive relationships with others.Further, competence with peers may promote the development of critical relational skills, such as empathy, conflict resolution, and perspective-taking.A recent meta-analysis found that both parent-child and peer relationship quality were related to increased concern for others and increased understanding of others' emotions (Boele et al., 2019), which are important for the positive development and maintenance of all relationships, including parent-child relationships (Collins & Van Dulmen, 2006;Hartup, 1996;Sroufe, 2005;Stern et al., 2015).Further, Rostad and Whitaker (2016) found that a G2 parent's ability to consider the perspective of their children was a strong predictor of G2 positive parenting (defined as involvement, communication, discipline practices, and support) above and beyond G1 parental rejection, G2 relationship attachment, and G2 mental health problems.
Academic competence.A significant body of literature has established that G1-positive parenting is associated with increased G2 academic performance, engagement, achievement, and attainment (e.g., Brennan et al., 2013;Davis-Kean, 2005;Lamborn et al., 1991;Steinberg et al., 1992).A recent meta-analysis reported that both cross-sectional and longitudinal studies have found that higher G1 parental warmth is associated with better G2 academic performance, whereas G1 parental harsh control is associated with lower G2 academic achievement.Changes in G1 parenting have predicted changes in G2 academic achievement over time (Pinquart, 2016).In turn, G2 academic achievement has been linked with subsequent G2 parenting behaviors.In a longitudinal study across two generations, Neppl et al. (2009) found that G2 grade point average in early adolescence significantly mediated the relation between G1's positive parenting and G2's positive parenting.Similarly, Mahrer et al. (2014) found that G2 highschool grade point average predicted higher G2 warm parenting attitudes in emerging adulthood.Further, research has shown that G2 educational attainment is related to increased G2 parental investment in children (Conger & Donnellan, 2007).
Externalizing problems.There is consistent evidence that G1 parental warmth is related to lower G2 externalizing problems.A recent meta-analysis (Pinquart, 2017) found that higher G1 parental warmth was associated with lower G2 externalizing problems in children both cross-sectionally and longitudinally, and that G1 parental warmth predicted changes in G2 externalizing problems over time.There is also evidence that G2 externalizing problems predict subsequent G2 parenting behaviors.In a longitudinal examination of parenting behaviors over two generations, G2 externalizing behaviors mediated the relation between G1 and G2 harsh parenting (Neppl et al., 2009).Similarly, Mahrer et al. (2014) found that G2 externalizing problems in adolescence predicted lower G2 warmth attitudes in emerging adulthood.
Further, research has demonstrated that there is a significant genetic basis for the development of G2 outcomes, including social competencies (e.g., Edelbrock et al., 1995), academic grade point average (e.g., Johnson et al., 2006), and externalizing problems (e.g, Burt, 2009).Research has also demonstrated gene-by-environment interactions, in which G2 genetic factors interacted with G1 parenting to predict G2 outcomes in adolescence and adulthood.For example, in an 18-year longitudinal study, genetic polymorphism in the serotonin receptor gene interacted with changes in maternal sensitivity over time to predict romantic attachment in adulthood (Fraley et al., 2013).In another longitudinal study, parental monitoring during adolescence interacted with polygenic scores to predict externalizing disorders, such that variance in externalizing explained by genetic factors was higher at low levels of parental monitoring (Salvatore et al., 2015).

Grief
For bereaved children, there is theoretical and empirical support for a cascade effects model in which intervention-induced improvements in G1 parenting lead to reductions in G2 grief and, in turn, affect G2 attitudes toward parenting in young adulthood.Alvis et al. (2022a) proposed theoretical processes through which parenting might affect their offspring's grief, though few studies have examined this relation empirically.They proposed that G1 parental responsiveness and sensitivity to their G2 children's negative affect may help G2s to cope with their distress over the death of their parent or the secondary stressors that follow the death.For example, responsive G1 parents might provide emotion coaching by validating and empathizing with their child's feelings rather than minimizing and invalidating their children's negative emotions (Katz et al., 2012).We are aware of only three studies that have empirically assessed the relations between aspects of parenting and children's grief.Shapiro et al. (2014) assessed caregiver behaviors during a discussion with their bereaved children concerning positive memories of their deceased parent.They found that G1-positive parenting behaviors (defined as sensitivity to children's needs, positive engagement, warmth, positivity, ease of conversation, and conversational depth), were related to lower symptoms of G2's maladaptive grief.Alvis et al. (2022b) found that G2 reports of their G1 caregiver's avoidance and inhibition of grief discussions were related to higher levels of G2 maladaptive grief.In the only prospective longitudinal study with bereaved children, Wolchik et al. (2008) found that caregiverchild relationship quality was significantly related to children's lower intrusive grief thoughts 11 months later.
Although there are no empirical studies on the impact of grief experienced during childhood/adolescence on attitudes toward parenting or parenting behaviors in adulthood, we hypothesized that increased grief could lead to more maladaptive parenting attitudes because of relations between childhood grief and adult outcomes that are cross-sectionally associated with parenting.For example, a study with parentally bereaved children/adolescents found that childhood grief had an indirect effect on worsened major depression (Sandler et al., 2023) and a direct effect on higher levels of suicidal ideation/attempts (Sandler et al., 2021) 14 years later during adulthood.Given that depression and suicidality have been shown to relate cross-sectionally to less positive and more negative parenting behaviors in multiple studies (e.g., Lovejoy et al., 2000), it follows that childhood grief may have an effect on parenting attitudes during adulthood.

Current study
In this study, we used data from a randomized controlled trial of the Family Bereavement Program (FBP), a preventive intervention for bereaved families, to examine the program's effect on G2 parenting attitudes 15 years after the program.We tested the direct effects of the FBP on G2 parenting attitudes at the 15-year followup and cascade effects through potential mediating pathways at intervening assessment periods.For the theoretical model, see Figure 1.Each cascade effect model included three paths: (1) effects from intervention to posttest (T2) G1 parental warmth; (2) effects from T2 G1 parental warmth to the potential mediator at the sixyear follow-up (T4); and (3) effects from the T4 potential mediator to the 15-year follow-up (T5) G2 attitudes toward warm parenting and attitudes toward physical punishment.Potential mediators at T4 included G1 parental warmth, G2 functioning (i.e., academic competence, peer competence, romantic attachment, and externalizing problems), and G2 grief (i.e., posttraumatic growth through grief and grief-related social detachment/insecurity).Examining whether a preventive parenting intervention affects the parenting attitudes of young adults who have just started to have families or do not yet have children is important, given that parenting attitudes are established before or early in parenting (Powell & Karraker, 2017) and are significant predictors of subsequent parenting behavior (Cappa & Dam, 2014;Kelmendi et al., 2022;Simons et al., 1993;Vittrup et al., 2006;Xing et al., 2019).
The experimental nature of the study and its multiple assessments over 15 years are important features of this study.
Although multiple longitudinal studies have demonstrated the continuity of parenting behaviors across generations, a randomized experimental design provides a more rigorous examination of the associations between G1 parenting and G2 attitudes toward parenting and allows testing of the role that parenting plays in resilience theory (Masten, 2007(Masten, , 2014)).Randomization disentangles the effects of intervention-induced changes in G1 parenting from variables in the environment that impact this relation in nonexperimental studies (e.g., parent depression, shared genes).In addition, experimental studies address the generational shift in which recent generations of parents have increasingly shifted toward using more parental warmth and using less strictness (including both harsh and nonphysical punishment practices) in their parenting practices (Garcia et al., 2020).
As reported in our pre-registered plan, we hypothesized the following: H1: Direct effects There will be a direct effect of participation in the FBP on G2's parenting attitudes 15 years later such that G1 participation in the FBP would lead to G2s having higher warmth attitudes and lower physical punishment attitudes.Further, program effects on G2 parenting attitudes will be stronger for G2s whose parents entered the program with less parental warmth.

H2: Cascade effects through G1 parental warmth
Intervention-induced increases in G1 parental warmth at posttest will lead to stability or improvements in G1 parental warmth at the 6-year follow-up which will, in turn, lead to higher G2 warmth attitudes and lower physical punishment attitudes at the 15-year follow-up.

H3: Cascade effects through G2 functioning
Intervention-induced increases in G1 parental warmth at the posttest will lead to improvements in G2's romantic attachment, peer competence, and academic competence, and to decreased externalizing problems at the 6-year follow-up, which will lead to higher G2 warmth attitudes and lower physical punishment attitudes at the 15-year follow-up.
H4: Cascade effects through G2 grief Intervention-induced increases in G1 parental warmth at the posttest will lead to improvements in G2 growth through increased posttraumatic grief and decreased grief-related social detachment/ insecurity at the 6-year follow-up, which will lead to G2 higher warmth attitudes and lower physical punishment attitudes at the 15-year follow-up.

Exploratory analyses
In exploratory analyses, we tested whether these models differed by G2 gender (male vs. female) or age (8-12 vs. 13-16).We examined whether G2 gender moderated the direct and cascade effects based on prior evidence of G2 gender differences in the transmission of parenting attitudes and parenting behaviors, although results are inconsistent regarding whether transmission is stronger for females (Belsky et al., 2005;Isley et al., 1999;Simons et al., 1992) or males (Madden et al., 2015;Savelieva et al., 2017;Simons et al., 1992).Given the inconsistencies in the literature, we did not make a priori hypotheses about the direction of these effects.We also examined whether age moderated the direct and cascade effects, given that G2s participated in the program at different developmental stages.Although differential effects of the potential mediators that we examined have rarely been studied by age (for an exception see Tammilehto et al., 2021), we thought it was plausible that the impact of the putative mediators of parental warmth, romantic attachment, and peer competence might vary by age, such that the relations between parental warmth and attitudes would be stronger for the younger than older G2s and the relations between peer and romantic competence and attitudes would have stronger for older than younger G2s (Allen et al., 2018).For academic competence, externalizing problems, and grief, we did not have data or theory to support differential effects on parenting attitudes by G2 age.

Participants
Bereaved families were recruited from community agencies, including schools and service agencies, as well as by mail solicitation (for full data collection procedures, please see Sandler et al., 2003).There were several eligibility criteria, including: (1) family experienced parental death between four and 30 months before beginning the study (2) family had one or more children between the ages of 8 and 16; (3) family was not currently receiving other mental health or bereavement services; (4) family was willing to participate in either the intervention (FBP) or the literature control self-study (LC) program; ( 5) parents (used to describe the child's primary post-bereavement caregiver) and youth were able to complete the assessment in English; (6) youth were not receiving special education services; and (7) family planned to stay in the area for the next six months.Families were referred to mental health treatment services if either the child or parent expressed suicidal intent or if the parent was diagnosed with major depression using the Structured Clinical Interview for DSM-IV (First et al., 1996).In addition, because of potential problems complying with group procedures, children were excluded and referred for clinical services if they were diagnosed with conduct disorder, oppositional defiant disorder, or attentiondeficit/hyperactive disorder (that was not being treated with medication) using the Diagnostic Interview Schedule for Children-Child/Parent Informant (Shaffer et al., 1996).Following the pretest interview, families were randomized to the FBP (n = 90 families; 135 children) or self-study literature control (LC) condition (n = 66 families; 109 children) at a 55/45 ratio.
The sample was comprised of 244 children and adolescents (G2).The mean age of the children at program entry was 11.4 years (SD = 2.43) and 26.71 (SD = 2.35) at the 15-year follow-up.Fiftyfour percent were males.Ethnicity was as follows: 67% non-Hispanic White, 16% Hispanic, 7% African American, 3% Native American, 1% Asian or Pacific Islander, and 6% other.At the pretest, 63% resided with their mothers, 21% with their fathers, and 16% with a nonparental family member or friend.Parental death occurred an average of 10.81 months before the study (SD = 6.35).Sixty-three per cent of the caregivers were mothers, 21% were fathers, and 16% were another relative or friend.Cause of death was 67% illness, 20% accident, and 13% homicide or suicide.Median family income was between $30,000 and $35,000 and 15.9% of families were below the poverty line according to the U.S. Health and Human Services poverty guidelines for 1996 (Sandler et al., 2003).Using data from death certificates for adults aged 28-58 years in the county in which the study occurred, Sandler et al. (2003) showed no differences between this sample and the population of deaths in the county in this age range on ethnicity: χ 2 (5, N = 148) = 1.47, ns, gender: χ 2 (1, N = 153) = 0.17, ns, or cause of death: χ 2 (2, N = 153) = 1.28, ns.Prior evaluations have shown that families in the FBP and LC groups were comparable in terms of the demographic variables and pretest variables (Sandler et al., 2003), except that the percentage of non-Hispanic Whites was lower in the FBP group than in the LC group (64 vs. 72%).

Intervention conditions
The Family Bereavement Program (FBP) is a 12-session program that includes separate groups for parents, adolescents, and children, plus two individual family sessions.The manualized program was delivered by two master's level counselors.Fidelity to the program was very high (Sandler et al., 2003) such that objective raters reported that over 80% of the action items described in the manual were delivered by group leaders.The parent component focused on teaching skills and activities to promote positive parent-child relationships (e.g., catch 'em doing good, active listening), supporting parents' adaptive grief processes (e.g., identifying and progressing toward bereavement-related goals), strengthening effective discipline practices (e.g., clear expectations, consistent and appropriate consequences), and reducing parents own depression and grief (e.g., normalizing grief experiences, increasing involvement in positive activities).The child and adolescent components of the program focused on activities to strengthen effective coping skills (e.g., cognitive reframing, problem-solving), improve the parent-child relationship, adaptively express grief-related feelings, and reduce threat appraisals.For a full description of the FBP, please refer to Ayers et al. (2014) and Sandler et al. (2013).
The LC condition consisted of three developmentally appropriate books on grief sent to the parents, adolescents, and children.Forty-two percent of parents, 38% of adolescents, and 71% of children reported reading 50% or more of the books.
Interviews were conducted in the families' homes; parents and children were interviewed separately by trained interviewers.After confidentiality was explained, parents and offspring 18 or older provided informed consent, and children provided informed assent.At T1 and T2, families were paid $40 for interviews involving one child and an additional $30 for each additional child who participated in data collection.At T4 and T5, G1 and G2 each received $175.
Interviewers were masked to participants' group assignment at all time points, and participants were instructed not to disclose their group assignment to interviewers.At T4, interviewers' knowledge of condition was assessed; 96.5% of interviewers reported that they did not know the interviewee's program condition.All procedures were approved by the university's Institutional Review Board.
G2 peer competence.G2 peer competence was measured using G2 report at T4 on the 7-item Peer Relationships subscale of the Coatsworth Competence Scale (Coatsworth & Sandler, 1993; e.g."You are liked by lots of peers your age"; α = .63-.78).Composite scores across G1 and G2 reports were created for the pretest measures by computing the mean of z-scores across G1 and G2 reports.The Coatsworth Competence Scale has been shown to have adequate convergent and discriminant validity and internal consistency reliability in community and at-risk samples (Coatsworth & Sandler, 1993;Spaccarelli et al., 1995).
G2 academic competence.G2 academic competence was assessed using G1 and G2 reports at T1 and G2 report at T4 on the Coatsworth Competence Scale 6-item Academic Competence subscale (Coatsworth & Sandler, 1993; e.g."You got mostly A's and B's in school"; α = .81-.89).Composite scores across G1 and G2 reports were created for the T1 measures by computing the mean of z-scores across G1 and G2 reports.The Coatsworth Competence scale has been shown to have adequate convergent and discriminant validity and internal consistency reliability in community and at-risk samples (Coatsworth & Sandler, 1993;Spaccarelli et al., 1995).
G2 romantic attachment.At T4, G2 completed two subscales of the Experiences in Close Relationships Scale (ECR; Brennan et al., 1998) that assess general romantic experiences: the 18-item Anxiety subscale (e.g., "I need a lot of reassurance that I am loved by my partner," α = .93)and 18-item Avoidance subscale (e.g."I prefer not to show a partner how I feel deep down," α = .90).The scale is reliable and valid (Sibley et al., 2005).
G2 externalizing problems.G2 externalizing problems were measured at T1 and T4 using a composite of G1 and G2 reports on the Child Behavior Checklist (CBCL; Achenbach & Edelbrock, 1991) and Youth Self-report (YSR; Achenbach, 1991) respectively for G2s younger than 18 years.For G2s aged 18 and older, G1s completed the Young Adult Behavior Checklist (YABCL; Achenbach, 1993) and G2s completed the Young Adult Selfreport (YASR; Achenbach, 1990).Because the measures for G2 adolescents and young adults are not identical, previous measurement work performed by this team (see 2016a, Sandler et al., 2010) applied item response theory to conduct an equating transformation that selected conceptually equivalent items and put the scale scores (across CBCL and YABCL and across YSR and YASR, respectively) on a common metric using a large data set obtained from Achenbach (Thomas M. Achenbach, Ph.D., unpublished raw data from the CBCL, YABCL, YSR, and YASR, 2003) that contained self-and parent-report scores on the CBCL/ YABCL and YSR/YASR.The resulting 35-item CBCL, 34-item YABCL, 32-item YSR, and 27-item YASR subscales had good reliability, with T4 internal consistencies of .92,.93,.88,and .87,respectively.At T1, CBCL, and YSR internal consistencies were .90 and .86,respectively.The CBCL and YABCL have good reliability and validity (Achenbach & Edelbrock, 1991;Achenbach, 1993).
G2 posttraumatic growth through grief.At T4, G2s completed the 7-item Relating to Others subscale of the Posttraumatic Growth Inventory (PTGI; Tedeschi & Calhoun, 1996; e.g."You have a greater sense of closeness with others"; α = .91).This scale assessed how G2s felt that their relationships with others had improved as a result of dealing with their parent's death.Tedeschi and Calhoun (1996) reported adequate test-retest reliability and internal consistency of this measure as well as concurrent and discriminant validity.In this sample, the Relating to Others subscale was significantly inversely correlated with measures of relationship avoidance (r = −.38) and grief-related Social Detachment/Insecurity (r = −.43).
G2 grief-related social detachment/insecurity.At T4, G2s completed the Social Detachment/Insecurity Subscale (Kennedy, 2006; α = .83),which is a composite of seven items from the 26item Inventory of Complicated Grief (ICG; Prigerson et al., 1995) that assess feelings of loneliness, a lost sense of safety, trust and control, numbness, jumpiness, and perceived distance from others (e.g., "Over the past month, to what extent has it been hard for you to trust others?").Social Detachment/Insecurity is significantly associated concurrently with G2 and G1 reports of internalizing and externalizing problems and inversely related to self-esteem and peer competence.
Outcomes G2 parenting attitudes.G2 attitudes toward parental warmth were measured at the 15-year follow-up using the 8-item Empathetic Awareness subscale of the Adult-Adolescent Parenting Inventory (Bavolek, 1985; e.g."Children will quit crying faster if they are ignored", α = .88).Attitudes toward physical punishment were measured at the 15-year follow-up using the 10-item Physical Punishment subscale of the Adult-Adolescent Parenting Inventory (Bavolek, 1985; e.g., "Children deserve more discipline than they get," α = .92).Both subscales have demonstrated adequate reliability and validity (Bavolek, 1985;Conners et al., 2006).

Covariates
In all models, we included matched pretest controls of mediator variables (e.g., T1 externalizing was a covariate for models that included T3 externalizing) with two exceptions.First, because it was not developmentally appropriate to ask children about romantic attachment at T1, peer competence, which we determined was the most closely related variable assessed at pretest, was used as a pretest covariate in the models involving romantic attachment.At T1, peer competence was a composite of G1 and G2 reports on the 7-item Peer Relationships subscale of the Coatsworth Competence Scale (Coatsworth & Sandler, 1993).
Second, neither measure of grief was assessed at T1.As such, a composite score (i.e., equally weighted sum of standardized scores) of the 9-item Intrusive Grief Thoughts Scale (IGTS, Program for Prevention Research, 1999, α = .89),which assessed the degree to which current negative grief-related thoughts intruded on children's everyday lives, and the 13-item Present Feelings subscale of the Texas Revised Inventory of Grief (TRIG; Faschingbauer, 1981; α = .89),which assessed the frequency of intrusive, negative, and disruptive experiences related to grief, was used as a covariate for the two grief outcomes.Reliability and validity of the TRIG are acceptable (Futterman et al., 2010;Holm et al., 2018;Montano et al., 2016).Due to high skewness and kurtosis, two items were dropped at all time points ("sometimes I very much miss my [deceased parent]"; "no one will ever take the place of my [deceased parent] who died").
T1 parental warmth was included as a covariate as the matched control for T2 parental warmth.We also identified other variables that were significantly related to the intergenerational transmission of parenting behaviors and attitudes in the literature (e.g., Hoff et al., 2002;Simons et al., 1993) and considered them for inclusion as covariates: T1 income, G2 gender, G2 age, G1 gender, T1 G1 education, composite G1 and G2 reports of T1 G2 internalizing problems, composite G1 and G2 reports of T1 G2 externalizing problems, and G2 having children at the 15-year follow-up (yes-no).

Data analytic strategy
Our data analytic strategy and hypotheses were pre-registered through the Open Science Framework (https://doi.org/10.17605/OSF.IO/NFJST).
We probed for potentially influential cases by looking for cases with a Cook's distance exceeding .20 (Bollen & Jackman, 1985).To determine what covariates to include in the models, we examined correlations between the T4 mediators and T5 dependent variables and the potential covariates.Any covariate that was significantly related to warmth attitudes or physical punishment attitudes was included as a control variable for all models; those that were significantly related to a T4 mediator were included only in models that contained that mediator.
We used the structural equation modeling framework to test the hypothesized models, using Mplus (version 8.3; Muthén & Muthén, 1998-2017).The Mplus command TYPE = COMPLEX (i.e., sandwich estimator) was used to adjust standard errors due to the clustering effects of children being nested within families.In all models, variables at the same time point were allowed to covary and we controlled for the matched pretest mediator variables.Given that Mahrer et al. (2014) found an interactive effect of intervention with pretest parental warmth on warmth attitudes 15 years later, before running models, we examined whether this interaction predicted G2 warmth attitudes at T5. Per our preregistration, if the interaction term was a significant predictor of warmth attitudes, it would be included in all mediation models.
For the cascade mediation models, as shown in the theoretical model presented in Figure 1, the proximal mediator (G1 parental warmth) was assessed at T2; the distal mediators (G1 parental warmth and G2 academic competence, peer competence, romantic attachment, externalizing problems, posttraumatic growth through grief, and grief-related social alienation) were assessed at T4; and the dependent variables (G2 warmth attitudes and physical punishment attitudes) were assessed at T5. T1 parental warmth, matched control variables (i.e., pretest measure of the mediator/outcome or proxy), and demographic variables that were significantly related to the mediator or outcomes were included as covariates.
Each hypothesis was tested in a separate path model.Then, to investigate the overall effects of the proximal G1 mediator and the G1 and G2 distal mediators and the unique effect of each mediator over and above the others, we evaluated a model that included the variables that had a significant (p < .05)or marginal (p < .10)path from both T2 parental warmth to the T4 mediator and the T4 mediator to warmth attitudes or attitudes toward physical punishment.
Finally, we conducted two exploratory analyses to assess moderation by G2 age and sex, respectively.We examined a multigroup model in which each hypothesis was explored separately for (1) younger (8-12 years old) vs. older (13-16 years old) G2s at program entry and (2) male vs. female G2s.Given the large number of paths and the lack of a priori hypotheses for the predicted effects, we used the false discovery rate procedure (Benjamini & Hochberg, 1995) to adjust for multiple tests.

Preliminary analysis
No influential cases were identified.Descriptive statistics and zeroorder Pearson product-moment correlations are presented in Tables 1 and 2. G2 age (at the time of the program) and gender, as well as whether G2s had children of their own (yes or no), were significantly correlated with parenting attitudes and thus were included as covariates for all models.G1 gender was significantly related to romantic attachment and thus was included as a covariate in the model that contained romantic attachment.The intervention by pretest parental warmth interaction did not significantly predict warmth attitudes at 15 years, so it was not included in any model.

Direct effects of the FBP
The intervention was a significant predictor of G2 physical punishment attitudes such that participation in the FBP predicted decreased physical punishment attitudes (B = −0.149,SE = 0.067, t = −2.214,p = 0.027).There was no direct effect of the intervention on G2 warmth attitudes (B = 0.034, SE = 0.080, t = 0.423, p = .674).
Cascade effects through G2 posttraumatic growth through grief and grief-related social detachment Participation in the FBP was significantly related to T2 G1 parental warmth (B = 0.14, SE = 0.046; t = 3.038; p = .003).T2 parental warmth did not significantly predict T4 G2 posttraumatic growth through grief or grief-related social detachment.Further, neither T4 G2 posttraumatic growth through grief nor grief-related social detachment predicted T5 G2 warmth or physical punishment attitudes.
The finding that higher T4 parental warmth was related to higher T5 G2 physical punishment attitudes is surprising from both theoretical and empirical perspectives, given that a large body of literature has demonstrated that parental warmth in adolescence is a potent protective factor (e.g., Pinquart & Gerke, 2019;Rothenberg et al., 2020;Shin et al., 2019).It is important to note that in the model in which T4 parental warmth was included as the sole mediator, it was not significantly related (p = .098)to T5 G2 physical punishment attitudes.Also, the zero-order correlation between T4 parental warmth and T5 physical punishment attitudes was nonsignificant (r = .016,p = .841).Only in the combined mediator model was this relation significant.
Exploratory analyses: G2 age and gender moderation After correcting for the number of analyses using the false discovery rate, there were no significant differences in the models across G2 age or gender.

Discussion
This is the second experimental study to examine whether a parenting-focused preventive intervention affects parenting attitudes in the next generation.Analyses demonstrated that participation in the Family Bereavement Program (FBP), an intervention for parentally bereaved families, directly reduced G2 physical punishment attitudes 15 years later.The findings also supported a cascade effects model in which intervention-induced improvements in G1 parental warmth at posttest led to fewer G2 externalizing problems and lower anxious romantic attachment in mid-to-late adolescence/emerging six years later, which in turn led to less favorable G2 attitudes toward physical punishment and more favorable G2 attitudes toward warm parenting, respectively, 15 years after the intervention.The findings did not provide support for a social learning model.Although intervention-induced improvements in G1 parental warmth were maintained six years after the intervention, G1 parental warmth in adolescence/emerging adulthood did not lead to more favorable G2 parenting attitudes in adulthood.We did not find support for the hypothesis that improvements in G2 peer competence or grief would improve parenting attitudes.Below, we discuss the findings in the context of other research on the intergenerational transmission of parenting and their implications for resilience theory and interventions, as well as the study's limitations and future directions for research.
Direct effects: physical punishment attitudes Buston et al. (2022) recently called for interventions that can break the cycle of negative parenting.Our findings show that the relatively brief FBP, which focused on improving parent-child relationship quality and effective discipline as well as promoting child competencies, led to less favorable attitudes toward physical punishment.This finding is similar to that of the only other experimental study of whether changes in G1 parenting affect G2 parenting attitudes, which found that a preventive intervention for divorced mothers reduced favorable attitudes toward harsh discipline of emerging adult offspring whose mothers reported using more harsh discipline at program entry (Mahrer et al., 2014).Although parents' level of physical punishment at program entry might have moderated the relation between the intervention and G2 physical punishment attitudes in the current study, this interaction could not be examined because G1 physical punishment was not assessed at pretest.
Given that more favorable attitudes toward physical punishment are associated with more punitive disciplinary strategies (Azar et al., 2005;Babcock Fenerci et al., 2016;Bower-Russa et al., 2001;Easterbrooks et al., 2012;Kim & Cicchetti, 2004) and the use of physical punishment is associated with children's mental and physical health problems (Afifi et al., 2013;Gershoff et al., 2018;Gershoff & Grogan-Kaylor, 2016), this finding suggests that providing a parenting-focused intervention in one generation may positively impact the subsequent generation's parenting and their children's mental and physical health problems.The current findings suggest that relatively brief interventions, such as the FBP, may confer even larger public health benefits than previously believed.Should other interventions also show program effects on parenting attitudes, these findings could be used to support funding for such programs, given their long-lasting return on investment.
It is interesting to speculate about how the FBP reduced favorable attitudes toward physical punishment.It is possible that the intervention component focused on discipline, which discouraged use of harsh discipline, such as physical punishment, and taught alternatives to harsh strategies led to decreases in G1's use of physical punishment.G2s may have endorsed attitudes toward physical punishment that reflected the discipline they experienced after their parents participated in the FBP.It is also possible that self-regulation skills modeled in video skills demonstrations resulted in parents using these skills during interactions with their children, which in turn, led to offspring endorsing attitudes toward parenting that involve using these skills.Further, although not examined in this study, it may be that the child component of the FBP led to improvements in G2 selfregulation which led to less favorable attitudes toward physical punishment.A recent meta-analysis by Robson et al. (2020) provided substantial evidence that self-regulation in childhood is significantly related to social competencies, academic performance, and mental health problems in adolescence, all of which have been shown to be related to subsequent parenting in adulthood (e.g., Neppl et al., 2009;Raby et al., 2015;Shaffer et al., 2009).Further, self-regulation in adulthood is related to negative parenting, such that parents with poorer self-regulation use more harsh/negative discipline strategies (Bridgett et al., 2015).
The results highlight the importance of assessing the effects of preventive interventions on both mental health problems and developmental competencies across developmental periods postintervention.This suggestion echoes a statement made by Coie et al. (1993) almost three decades ago that understanding the true effects of preventive interventions will require assessments that track participants over development.To date, several randomized controlled trials of relatively brief parenting-focused preventive interventions have demonstrated improved functioning in offspring of participants that last into adulthood, including reductions in mental health problems, physical health problems and substance use problems, less involvement with the criminal justice system, and improvements in competencies, such as academic achievement and work competence (Brody et al., 2019;Herman et al., 2015;Sandler et al., 2016bSandler et al., , 2018;;Spoth et al., 2008Spoth et al., , 2022;;Wolchik et al., 2013Wolchik et al., , 2016Wolchik et al., , 2021)).Along with the findings of Mahrer et al. (2014), the current findings suggest that relatively brief parenting-focused interventions may have direct and cascade effects on additional domains of functioning.

Physical punishment attitudes
Decreases in externalizing problems emerged as a significant mediator of the cascade effects of the FBP to lower physical punishment attitudes in the combined model.The FBP improved G1 posttest parental warmth, which led to decreases in G2 externalizing problems at the 6-year follow-up, which led to lower G2 physical punishment attitudes.The link between parental warmth and externalizing problems in mid-to-late adolescence/emerging adulthood is consistent with numerous non-experimental studies (Rothenberg et al., 2020).The link between higher externalizing problems in adolescence and more favorable attitudes toward physical punishment in adulthood is consistent with the findings of studies on the intergenerational transmission of parenting (Capaldi et al., 2003;Neppl et al., 2009;Simons et al., 1991).The relation between externalizing problems in adolescence and later attitudes toward physical punishment is likely due, in part, to the continuity of externalizing problems and the aggression-supporting cognitive styles associated with them (duBow et al., 2003;Petersen et al., 2015;van der Ende et al., 2020).

Warmth attitudes
Reductions in anxious romantic attachment in adolescence/ emerging adulthood mediated the cascade effects of the FBP on warm parenting attitudes.Specifically, the FBP led to improvements in G1 posttest parental warmth, which led to decreases in G2 anxious romantic attachment at the 6-follow-up, which led to more favorable G2 attitudes toward parental warmth.To our knowledge, this is one of the few prospective studies that include multiple developmental periods to show that romantic attachment affects parenting attitudes or behaviors (see Labella et al., 2019 andShlafer et al., 2015 for exceptions).This finding is consistent with a review of more than 60 studies on the links between self-reported adult attachment styles and parenting which found that romantic insecurity is related to less sensitive, supportive, and responsive parenting behaviors (Jones et al., 2015).
The association between less romantic anxiety and higher warmth attitudes may be due to differences between securely and insecurely attached individuals' focus on their own distress and attachment needs, which affects the mental resources needed to respond accurately to another's needs or the strong desire for closeness, support, and love associated with attachment anxiety.The focus on one's own attachment needs may taint caregiving motives with desires for acceptance and gratitude, which impair responsiveness (Mikulincer & Shaver, 2012).Alternatively, Collins et al. (2010) suggest that the discomfort with emotional expression or difficulty regulating one's own emotions associated with attachment insecurity may explain why responsive caregiving for offspring in distress might be particularly difficult for those who have high levels of romantic attachment anxiety.
The FBP did not have direct or indirect effects on academic competence.Research that shows that parenting interventions led to improvements in academic competence as assessed by objective measures such as GPA and standardized achievement tests (e.g., Brennan et al., 2013;Wolchik et al., 2007) suggests that the lack of a significant effect in this study could be due to our use of a selfreport measure.Academic competence at the 6-year follow-up predicted higher parental warmth attitudes.This finding is similar to that of Mahrer et al.s' (2014) in their study of an intervention for divorced families.Kerr et al. (2009) found that a composite variable of positive adjustment in adolescence that included high school grades predicted constructive parenting in emerging adulthood.The relation between higher academic competence and greater warmth attitudes may reflect the association between higher academic performance and greater educational attainment (Acacio-Claro et al., 2018).Higher educational attainment is associated with greater commitment to the parenting role (Neppl et al., 2009), greater likelihood of participation in child-rearing educational programs (Haggerty et al., 2002;Harman & Brim, 1980;Johnson et al., 2003;Spoth & Redmond, 2000), and authoritative parenting (Dornbusch et al., 1987), all of which are likely to be related to increased warmth attitudes.
Contrary to our hypothesis, peer competence did not significantly predict later parenting attitudes.The null finding is similar to that of Mahrer et al.s' (2014) study of a preventive intervention for divorced families.However, passive longitudinal research has found that social competence is associated with the intergenerational transmission of parenting (Shaffer et al., 2009).Our results may differ, in part, because of differences in measurement.Shaffer and colleagues assessed parenting quality rather than attitudes toward parenting.Also, Shaffer et al. (2009) examined only social competence whereas the current study included other possible predictors.
The findings for G1 parental warmth and attitudes toward parenting were complex.Although intervention-induced increases in warmth showed cascading effects through anxious romantic attachment and externalizing problems to G2 attitudes toward parenting, G1 parental warmth in adolescence/emerging adulthood did not predict G2 attitudes toward warm parenting.This finding is inconsistent with those of the very limited prior research on predictors of parenting attitudes (Mahrer et al., 2014;Thompson et al., 2003).These differences could be due to the use of different measures of positive parenting (Thompson et al., 2003) or the inclusion of a measure of discipline in the model (Mahrer et al., 2014).It was not expected that G1 parental warmth would be significantly related to more favorable G2 physical punishment attitudes.However, given the non-significant correlation between G1 parental warmth and G2 physical punishment attitudes and non-significant direct effect in the single mediator model, we view the significant relation in the combined model as an unstable effect that is most likely a statistical artifact and should not be interpreted as meaningful without replication.
Neither of the two aspects of grief assessed, posttraumatic growth through grief and grief-related social detachment, predicted parenting attitudes.It is possible that other aspects of grief than those tested in the current models may predict parenting attitudes or that the effects of grief do not spread to the domain of parenting attitudes.

Implications
The current study demonstrated both direct and cascade effects of a brief preventive intervention for bereaved families on attitudes toward parenting in the next generation.The experimental design strengthens the inferences that can be made about the intergenerational transmission of aspects of parenting compared to those previously based on retrospective and passive longitudinal designs.Our findings showed that the program affected attitudes toward parenting in the next generation and identified unique pathways that accounted for the program's effect on attitudes toward physical punishment and warm parenting attitudes.
The current findings add to a growing body of findings from experimental trials that have documented short-and long-term effects of preventive parenting-focused programs on a broad range of adaptation outcomes as well as the results of mediational analyses that have demonstrated that program-induced improvements in parenting-mediated program effects on long-term outcomes through multi-linkage cascade effects (see Sandler et al., 2015 for a review).Further, the results of the current study also highlight the power of parenting programs by showing the FBP's ability to improve an aspect of parenting, attitudes toward parenting, that is likely genetically influenced.Moreover, previous studies have demonstrated that engagement with a preventive intervention, the Family Check-Up, interacted with genetic factors to predict offspring outcomes such that adolescents with genetic risk who were in the program condition were less likely to develop negative outcomes (Elam et al., 2021;Lemery-Chalfant et al., 2018;Shaw et al., 2019).
This study has important implications for understanding the public health impact of parenting interventions such as the FBP.Given the well-documented relations between parenting attitudes and later parenting behaviors (e.g., Kiang et al., 2004;Sommer et al., 1993) and between positive parenting and children's mental and physical health problems and competencies (e.g., Hoeve et al., 2009;Roche et al., 2008), it is likely that the intervention-induced improvements in attitudes toward physical punishment and parental warmth will result in the third generation (i.e., grandchildren) of parents who participated in the FBP experiencing more positive parenting than those of parents who were in the literature control.
These findings extend the breadth of long-term program effects of the FBP.Prior studies have found that the program has longterm effects in emerging/young adulthood to reduce G2 major depression, generalized anxiety disorder, internalizing problems, externalizing problems, suicide thoughts/attempts, and use of mental health services and psychiatric medication Sandler et al., 2016bSandler et al., , 2018Sandler et al., , 2023)).The current study identified pathways through which the FBP may have effects that are transmitted to subsequent generations.
This study also adds to the broader literature on resilience theory and preventive interventions as mechanisms for mitigating risk and promoting resilience.The finding that improvements in parenting during childhood/late adolescence had enduring effects on developmental tasks in emerging adulthood is consistent with a large body of research that has identified positive parenting as a key resilience resource (e.g., Baumrind, 1971;Masten et al., 2004;Werner, 2013).The findings also align with resilience theory in emphasizing the dynamic interactions of protective and risk factors across systems and time (Masten, 2018), such that promoting positive parenting practices in one generation can have cascade effects across areas of development for offspring and potentially mitigate risk and promote protective resources in subsequent generations.This study also underscores the importance of considering long-term and cross-generational effects in evaluating intervention programs.By examining the complex pathways through which these cascading effects occur, this study adds depth to our understanding of how interventions can leverage resilience processes to foster positive outcomes across generations.

Limitations and future directions
This study should be considered in light of several limitations.First, the dataset did not include a measure of G1 physical punishment.In future research, it would be important to examine the impact of intervention-induced changes in G1 physical punishment as well as parental warmth and the pathways through which intervention-induced changes in physical punishment contribute to G2 parenting attitudes.Second, the dataset did not include measures of G2's parenting behaviors or their children's outcomes.Although parenting attitudes are linked to parenting behaviors and parenting behaviors are linked to offspring outcomes, future research should examine intervention effects on G2's parenting behavior, ideally using gold-standard methods such as parent-child interaction tasks.In addition, testing theoretical models of change wherein intervention effects on attitudes toward parenting lead to improvements in parenting and more positive outcomes in the third generation is a key direction for characterizing mechanisms driving the intergenerational transmission of parenting.Third, academic competence was assessed by self-report rather than more objective measures, such as GPA or standardized achievement tests.Future research should evaluate whether objective measures are more sensitive to change or reliable than self-report measures in this context.Fourth, given the sample size and complexity of the models that were tested, we examined only models that included intervention-induced improvements in parenting.However, testing the role of child competencies, such as coping, as mediators is an important direction for future research.Fifth, although we had a somewhat ethnically diverse sample, we were underpowered to examine ethnicity as a moderating factor.Similarly, we were unable to examine theoretically interesting moderators (e.g., parent gender and cause of parent death) because of small subsamples.Including parent gender and cause of death as moderators in studies with larger samples is an important direction for future research.

Figure 1 .
Figure 1.The hypothesized model of how the FBP may increase G2 Warmth attitudes and decrease G2 Physical Punishment attitudes through direct, modeling, and cascading effects.Note.*Adolescent functioning refers includes improvements in academic competence, peer competence, anxious and avoidant romantic attachment, and externalizing problems.

Table 1 .
Correlations and descriptive statistics of attitudes and demographic variables

Table 2 .
Correlations and descriptive statistics of outcome and potential mediating variables All correlations greater than or equal to ±.14 are significant at the p ≤ .05level; all correlations greater than or equal to ±.19 are significant at the p ≤ .01level.Group was coded as 0 = LC and 1 = FBP.